Scaffold bracket with spacers



Jan. 12, 1965 J. H. JACKSON SCAFFOLD BRACKET WITH SPACERS 3 SheetsSheet1 Filed Oct. 2, 1962 James H. Jackson INVENTOR.

Jan. 12, 1965 Filed Oct. 2, 1962 Fig. 7

J. H. JACQZKSON 3,165,288

SCAFFOLD BRACKET WITH SPACERS 5 Sheets-Sheet 2 James H. JacksonINVENTOR.

Q BY m Mi/W Jan. 12, 1965 J. H. JACKSON SCAFFOLD BRACKET WITH SPACERS 3Sheets-Sheet 3 James H Jackson INVENTOR. BY ym/a Em United States Patent6 3,165,288 SCAFFOLD BRACKET WITH SPACERS James H. Jackson, 3408 BillupsRoad, South Norfolk, Va. Filed Oct. 2, 1962, Ser. No. 227,774 Claims.(Cl. 248-226) The present invention generally relates to scaffoldbrackets and more particularly to certain improvements on that type ofscaffold bracket disclosed in my prior Patent No. 3,044,573, issued July17, 1962.

The primary object of the present invention is to provide a scaffoldbracket incorporating in its construction spacer arrangements wherebythe-scaffold bracket may be spaced away from the form with which thebracket is associated thereby enabling insertion of items such asreinforcing steel or the like between the scaffold bracket and the form.

Another object of the present invention is to provide an adjustmentassembly for enabling the brackets to be attached to various sizes ofties or bolts.

Yet another object of the present invention is to provide an attachmentin the form of a guide carried by the clamping eccentric for insuringthe proper placing of the bracket on the tie or bolt.

Still another feature of the present invention is to provide a scaffoldbracket having a pin for holding the eccentric operating rod in lockedposition thereby holding the device more securely when scaffold boardsare not used.

Still another important feature of the present invention is to provide anovel safety lock for use with the device when used in conjunction witha waler whereby the device cannot be lifted off of the waler along asthe safety lock is effective.

Still another object of the present invention is to provide a scaffoldbracket having a novel structural arrangement of bracing which enablesit to be easily assembled from readily accessible components and whichincludes a novel socket arrangement for receiving an upright support fora handrail when supporting scaffold boards.

Still another important feature of the present invention is to provide ascaffold bracket having various novel features whereby the device may besupported from the ties employed in concrete wall structures forsupporting scaffold boards or for supporting any desired platform andfurther including means for supporting the bracket from a waler and forsupporting the bracket in spaced relation to a form for ease ofinstallation of reinforcing rods, electrical conduits or the like. Theentire assembly is quite easily employed, inexpensive to manufacture andquite efficient for its particular purposes.

These together with other objects and advantages which will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout, and in which:

FIGURE 1 is an elevational view of the scaffold bracket of the presentinvention in which the brackets are employed and operatively disposed inrelation for supporting a decking'or platform;

FIGURE 2 is a detailed sectional view taken substantially upon a planepassing along section line 22 of FIGURE 1 illustrating the hand railsocket;

FIGURE 3 is a detailed sectional view taken substantially upon a planepassing along section line 33 of FIGURE 1 illustrating the orientationof the operating rod and the lock therefor for the eccentric;

FIGURE 4 is a detailed sectional view taken substantially upon a planepassing along sectionline 44 of FIGURE 1 illustrating further structuraldetails of the eccentric including the attachment thereon and theadjustable abutment for enabling differen sizes of tires to be clamped;

FIGURE 5 is a detailed sectional view taken substantially upon a planepassing along section line 5-5 of FIGURE 4 illustrating further detailsof the clamping eccentric;

FIGURE 6 is a side elevational view illustrating the scaffold bracketemploying upper and lower spacers for spacing the bracket from the form;

FIGURE 7 is a top plan view taken substantially upon a plane passingalong section line 77 of FIGURE 6 illustrating further structuraldetails of the spacers;

FIGURE 8 is a perspective view of the upper spacer; and

FIGURE -9 is a detailed sectional view illustrating the manner in whichthe scaffold bracket of the present invention is supported from a waler.

Referring now specifically to the drawings, the numeral 10 generallydesignates the scaffold bracket of the present invention which has manyuses including the use for supporting a decking on which a concretefloor or the like may be poured as illustrated in FIGURE 1, the use forsupporting scaffold boards from a wall form as illustrated in FIGURE 6and the user-being supported from a waler as illustrated in FIGURE 9.

The scaffold bracket 10 includes a top member 12 of angle ironconstruction and which is normally horizontally disposed and which hasthe top flange thereof disposed laterally or horizontally. Attached toone end of the horizontal top member 12 is a depending vertical member14 also preferably of angle iron construction with the two members beingsecured together by a bolt 16. The angle iron vertical member 14 has oneflange thereof projecting laterally outwardly in opposed relation to thetop flange of the member 12. A brace 18 interconnects the ends of thetop member 12 and the vertical member 14 in remote relation to the bolt16. The brace 18 is also preferably of an angle iron construction and isadhered to the bottom end of the vertical member 14 by a bolt 20 and issecured to the outer end portion of the top member 12 by virtue of abolt 22 thereby enabling complete disassembly of the bracket andproviding rigidity thereto due to the triangle formed by the top member12, the vertical member 14 and the brace 18.

For additional bracing of the scaffold bracket, an auxiliary horizontalbrace 24 is welded to the inclined brace 18 adjacent the lower endthereof and extends to and is detachably connected to the verticalmember 14 by a bolt 26 as illustrated in FIGURES 1 and 6. An auxiliaryvertical brace 28 is welded to the brace 18 in spaced relation to thebolt 22 and the brace 28 is secured to the top member 12 by virtue of aremovable bolt 30.

Attached to the top flange of the top member 12 is a horizontallydisposed strap-like member 32 which is secured in place by a pluralityof fastening bolts 34 which extend through selective ones of a pluralityof apertures formed in the top flange of the top member 12. The forwardend of the strap or plate 32 is provided with an angle iron member 36having a depending flange 38 thereon'which is normally disposed againstthe outer surface of the lateral flange of the vertical member 14. Theouter end of the top member 12 is provided with a U-shaped strap 40mounted thereon and disposed alongside of the vertical flange of the topmember 12. The bottom edge of the U-shaped member40 terminatessubstantially flush with the bottom surface of the top member 12 and atransverse strap 42 is welded across the space between the strap 40 andthe member 12 as ber 12 is an angle iron member 48 having a verticalflange 50 and a horizontal flange 52. The vertical flange 50 extendsupwardly alongside of the vertical flange of the member 12 and isdisposed between the vertical flange of the top member 12 and theadjacent flange of the vertical member 14 and the horizontal flange 52underlies and is spaced from the top flange of the top member 12.

.iournalled in the rear portion of the vertical flange.

50 is a stub axle or shaft 54 which also has an eccentric 56 securedthereto. One end of the shaft 54 is journalled in a depending bracket58' carried by the horizontal flange of the top member 12 therebyproviding support for both ends of the axle or shaft 54 and the axle orshaft 54 also serves to interconnect the vertical flange 50 of themember 48 and the depending flange of the horizontal top member 12. Theeccentric 56 is provided with serrations 60 on the periphery thereof forgrippingly engaging a tie 62 received between the periphery of theeccentric 56 and the horizontal flange 52 as illustrated in FIGURES 4and 5.

In order to enable different size ties 62 to be effectively gripped bythe eccentric member 56,"there is provided an adjusting bolt 64 having ahead 66 on the lower end and having the threaded ends screw threadedthrough a nut 68 Welded to the horizontal flange 52 in alignment with anopening therein whereby the top end of the bolt 64 forms an adjustableabutment for engaging the tie 62 thereby enabling different diameterties to be effectively gripped by the eccentric member.

In order to eliminate any possibility of the tie -62 slipping off of theabutment or slipping out from between the eccentric 56 and the alignedsurface of the member 52, there is provided a retaining bar or plate 70on the eccentric 56 as illustrated in FIGURE 4 which plate serves thepurpose of depending below the periphery of the cam or eccentric 56 forpreventing the tie 62 from slipping laterally sidewise and also servingto cam the tie 62 into proper underlying relation to the eccentric 56.

The end of the shaft or axle which extends through the vertical flange50 of the angle iron member 48 is provided with a rigid elongated handle72 carried thereby. Attached to the handle 72 is an angulated rod 74which cooperates and is secured to the ends of the handle 72 to formgenerally a triangular operating member for the eccentric and also toprovide a counterbalancing weight thereto so that when the handle isreleased, the

oneness '4 V member 82 which support a horizontal decking 84 on which aconcrete floor, roof or the like may be poured. The stringers 80 aresupported by U-shaped saddles 86 carried by a depending threaded rod88that extends through aligned apertures in the plate 32 and in the topflange of the top memberll whereby van adjusting nut '90 provided on thethreaded shaft 88 may vary the elevational position of the saddles 86thereby levelling the decking 84 or setting it at any desired position.When this construction is used, the post brackets or straps 40 are notemployed and the rods 74 are engaged with the lugs or pins 76 to lockthe scaflold brackets in' position.

When the device is to be used to support: scaffold boards 91 asillustratedin'FIGURE 6, the ties 62 are carried by an inner wall form 92and spacer assemblies 94 and 96 are provided for spacing the scaffoldbracket away from the wall form 92 so that reinforcing rods 98,electrical conduits or the like may be installed by those workersskilled in this type of endeavor.

The lower spacer assembly 96 includes a pair of angle iron members 1%which are disposed parallel to each other and which are welded to anangle iron members 102 that is detachably bolted to a lower transverseangle iron member 164 carried by the lower end of the vertical member14. The bolt for securing the angle iron members 102 and 104 togetherare designated by numeral 106 thus enabling attachment and detachment ofthe lower spacer assembly 96. The upper spacer assembly 94 isillustrated in FIGURES; and includes a pair of angle iron members 108parallel to each other and which are secured to an angle iron'member 110having apertures 112 therein for abutting engagement with the flange 38of the angle iron member 36 and is secured thereto by bolts 114. Inaddition, the'central part of the upper spacer assembly 94 is' providedwith an inverted or downwardly facing angle iron member 116 alsoWeldedto the angle iron member 110 and being braced by a brace rod 113and a depending brace member 120 attached to the angle iron member 110and attached to the vertical member 14 :by virtue of a suitablebolt 122.The brace rod 118 is attached to the exterior of the edge of the angleiron member 116 and the angle iron member 116 is disposed over and iscentralized on the tie 62 whereby the forces on the tieare transferredto the form 92. With the spacer assemblies 94 and 96 in position, the,scaffold boards 91 are spaced from the form 92'thus providing a space inwhich workmen may orientate various iron work such as reinforcing rods,electrical conduits and other similar elements which are to be placed ina concrete wall. a

Whenthe device is to be supported from a waler 124 on the exterior ofform members 126, the plate 32 is detached'from the top member 12 andmoved to an extended position as illustrated in FIGURE 9 and re-securedto the eccentric will gravitate so that it will eflectively grip the tie62 in substantially the same manner as in Patent No. 3,044,573 mentionedpreviously.

To prevent any possible accidental disengagement of the eccentric 56,there is provided a locking device which i may be in the form of a pinor lug 76 on the top member 12 adjacent the end of the rod 74 so thatthe rod 74' may be slightly laterally deflected for positioning underthelug 76-as illustrated in FIGURES 1 and 3. If 'the device is in the formof a lug, the top surface thereof may be inclined to form a carnmingeffect so that the rod may be brought into registry thereunder by merelypushing downwardly on the rod so that it will be automatically deflectedlaterally and then spring back under the lug 76 in an obvious manner.

It is vpointed out that the horizontal flange 52 of the angle ironmember 48 is disposed below the depending flange 38 ofithe angle ironmember 36 thus enabling the he 62 to' be brought into registry with theeccentric 56.

As illustrated in FIGURE =1, the ties 62 are disposed in a concrete Wall78 for the purpose of adjustablysupporting longitudinal stringers 80'carrying transverse top member 12 by the fastening bolts 34. In thisorientation,.the flange 38 is then spaced from the front flange of thevertical ,member 14 and may be positioned over the top edge of the waler124 in substantially the manner of a hook as illustrated in FIGURE 9.For preventing disengagement of the flange 38 from the waler-124,.thereis provided a latching member 128 in the form ofanangle iron memberpivotally attached to the verticalrmember 14 by a pivot bolt or rivet139'disposed at the'apex .of the angle iron member 128. The angle ironmember-128 is in the form of a strap and has a locking pin 132 tetheredthereto by a flexible chain 134 Orthelike.

V The angle strap member 128 is provided with a series of apertures 136in each leg thereof for selectiveregistry with an aperture in thevertical member 14 thus enabling the pin 132 to be insertedthrougheither an aperture in the vertical leg thereof; whenthe other legis disposed under the waler 124 as illustrated in FIGURE'9 so that thebracket is locked to the waler orfor engaging the in FIGURE 4, when thelocking lug is in theretracted position, the horizontal leg thereofextends alongside of and abuts the bolt 64 thus serving as a lock toprevent the bolt 64 from becoming maladjusted accidentally or due tovibrations or the like.

The scaffold bracket is also capable of being applied from an elevatedposition in the same manner as in the device illustrated in Patent No.3,044,573 and a similar type of operating cord may be attached to therod in the samemanner. FIGURE 7 illustrates a guide loop 140 on theangle iron member 36 for guiding a cord which also may be attached tothe outer end of the handle '72 merely tying the cord thereto or byrunning the cord through a suitable aperture provided thereon. Othersuitable loops may be provided for the operating cord and this enablesthe bracket to be dropped down from an elevated position into engagementwith a projecting tie or reinforcing rod in a concrete Wall for thepurpose of supporting the bracket therefrom whereby release of the cordwill automatically cause the eccentric 56 to grip the tie so that thescaffold boards may then be placed directly on the scaffold bracket asrequired or desired.

With the present invention, the device may be effectively employed forsupporting scaffold boards in the position illustrated in FIGURE 6 inspaced relation to a wall form or from a wall and also may be employedwithout the spacers for supporting scaffold brackets adjacent a wallform or adjacent a wall and may also be supported from a waler or from awall tie structure for carrying an overhead decking which may beemployed as a bottom of a form for a concrete floor or roof structure.

With the safety factors incorporated into the present invention,substantially all possible hazards have'been removed since there isnothing that can become accidentally disengaged and accordingly, thebracket of the present invention is not only extremely safe but alsoeffective for its particular purposes and relatively inexpensive tomanufacture.

The foregoing is considered as illustrative only of the principles ofthe invention.- Further, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction and operation shown anddescribed, and accordingly all suitable modifications and equivalentsmay be resorted to, falling within the scope of the invention asclaimed.

What is claimed as new is as follows:

1. A scaffold bracket adapted to be mounted on a wall tie projectingoutwardly from a forming wall in outwardly spaced relation to the wall,said bracket including an elongated vertical member positionableparallel to the wall, an elongated horizontal member rigid at one endwith the upper end of the vertical member and projecting outwardly atgenerally a right angle therefrom, upper and lower generally equallength spacers fixed to the vertical member and projecting therefrom ina direction opposite from the horizontal member for abutting engagementagainst the forming wall, and means on the horizontal member forreceiving and clampingly engaging the wall tie with the spacers abuttedagainst the wall, said means consisting of a horizontal surface fixed tothe bracket below the horizontal member and adjacent the verticalmember, an eccentric pivoted to the bracket above the horizontal surfacefor clamping the tie between the eccentric and the horizontal surface,an operating lever fixed to the eccentric and movable in a verticalplane adjacent the horizontal member between an unlocked positionorientated above the horizontal member and a locked position orientatedslightly below the upper surface of the horizontal member, and a lockingpin projecting laterally from the horizontal member for engaging thelever and retaining the lever in its locked position, said lever beingcapable of slight lateral deflection soas to pass beyond and behind saidpin, said locking pin including a camming surface for effecting alateralfiexing of the lever upon contact of the lever with this surface,said lever being automatically engaged behind the pin upon movement ofthe lever beyond the outer end of the pin.

2. The scaffold bracket of claim 1 wherein each spacer consists of afirst member fixed transversely across the vertical member andprojecting a substantial distance beyond both sides thereof, and a pairof spaced parallel members secured to the outer ends of the transversemeniber and projecting therefrom for independent engagement with thewall. p

3. The structure as defined in claim 1 wherein said horizontal memberincludes a plate having a depending flange at the outer end thereof,said flange normally being disposed against the vertical member,fastening means adjustably interconnecting the plate and the horizontalmember whereby the depending flange may be spaced from the verticalmember for engagement over a waler for supporting the bracket from awaler, said vertical member including a pivotal lock means mountedthereon for engagement under the waler to prevent disengagement of theflange from the waler thereby securing the bracket to the waler.

4. The structure as defined in claim 1 wherein said eccentric includesan attached plate for preventing disengagement of a tie with theeccentric after the eccentric begins movement toward its clampedposition.

5. The structure as defined in claim 4 wherein adjustable abutment meansis mounted on said horizontal surface for receiving the tie in opposedrelation to the eccentric, said abutment including a screw-threaded boltextending into engagement with the surface of the tie opposite to theeccentric.

References Cited by the Examiner UNITED STATES PATENTS 74,798 2/68 Comey-178 1,895,571 1/33 Hein 182l34 2,430,642 11/47 Mahaffey l821212,573,086 10/51 Yoshimoto- 248-235 2,605,074 7/52 Bucsko 2482352,825,582 3/58 McDonald 18291 3,044,573 7/62 Jackson 18287 3,067,83612/62 Carnicelli 18212l HARRISON R. MOSELEY, Primary Examiner.

FRANK B. SHERRY, Examiner.

1. A SCAFFOLD BRACKET ADAPTED TO BE MOUNTED ON A WALL TIE PROJECTINGOUTWARDLY FROM A FORMING WALL IN OUTWARDLY SPACED RELATION TO THE WALL,SAID BRACKET INCLUDING AN ELONGATED VERTICAL MEMBER POSITIONABLEPARALLEL TO THE WALL, AN ELONGATED HORIZONTAL MEMBER RIGID AT ONE ENDWITH THE UPPER END OF THE VERTICAL MEMBER AND PROJECTING OUTWARDLY ATGENERALLY A RIGHT ANGLE THREFROM, UPPER AND LOWER, GENERALLY EQUALLENGTH SPACERS FIXED TO THE VERTICAL MEMBER AND PROJECTING THEREFROM INA DIRECTION OPPOSITE FROM THE HORIZONTAL MEMBER FOR ABUTTING ENGAGEMENTAGAINST THE FORMING WALL, AND MEANS ON THE HORIZONTAL MEMBER FORRECEIVING AND CLAMPINGLY ENGAGING THE WALL TIE WITH THE SPACERS ABUTTEDAGAINST THE WALL, SAID MEANS CONSISTING OF A HORIZONTAL SURFACE FIXED TOTHE BRACKET BELOW THE HORIZONTAL MEMBER AND ADJACENT THE VERTICALMEMBER, AN ECCENTRIC PIVOTED TO THE BRACKET BOVE THE HORIZONTAL SURFACEFOR CLAMPING THE TIE BETWEEN THE ECCENTRIC AND THE HORIZONTAL SURFACE,AN OPERATING LEVER FIXED TO THE ECCENTRIC AND MOVABLE IN A VERTICALPLANE ADJACENT THE HORIZONTAL MEMBER BETWEEN AN UNLOCKED POSITIONORIENTED ABOVE THE HORIZONTAL MEMBER AND A LOCKED PO-